Which situation could be modeled by the expression 1/3 divided by 5?

One third pound of sugar is used for five cupcakes.

3 cups of sugar are used for 5 cupcakes.

One third cup of sugar is used for each of 5 cupcakes.

Each of 5 cupcakes uses 1 third pound of sugar.

PLEASE HELP!! THIS NEEDS TO BE FINISHED BEFORE 6:50!